./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product44.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb6f11e-ecd2-47e3-8a51-b038012122e2/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb6f11e-ecd2-47e3-8a51-b038012122e2/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb6f11e-ecd2-47e3-8a51-b038012122e2/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb6f11e-ecd2-47e3-8a51-b038012122e2/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product44.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb6f11e-ecd2-47e3-8a51-b038012122e2/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb6f11e-ecd2-47e3-8a51-b038012122e2/bin/uautomizer-WNIpwEf4Nt --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 29fd7ebbcc9514a740018fa1c2ef695c1d81ea72 .................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:13:26,956 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:13:26,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:13:26,988 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:13:26,989 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:13:26,992 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:13:26,993 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:13:26,996 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:13:26,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:13:26,999 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:13:27,001 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:13:27,002 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:13:27,008 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:13:27,009 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:13:27,011 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:13:27,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:13:27,018 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:13:27,020 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:13:27,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:13:27,032 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:13:27,034 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:13:27,042 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:13:27,044 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:13:27,047 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:13:27,051 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:13:27,053 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:13:27,054 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:13:27,055 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:13:27,056 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:13:27,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:13:27,059 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:13:27,060 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:13:27,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:13:27,064 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:13:27,065 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:13:27,066 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:13:27,066 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:13:27,067 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:13:27,067 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:13:27,068 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:13:27,068 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:13:27,069 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb6f11e-ecd2-47e3-8a51-b038012122e2/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 00:13:27,119 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:13:27,124 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:13:27,125 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:13:27,125 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:13:27,127 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:13:27,127 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:13:27,127 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:13:27,128 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:13:27,128 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:13:27,128 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:13:27,129 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:13:27,129 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:13:27,130 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:13:27,130 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:13:27,130 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:13:27,130 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:13:27,131 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:13:27,131 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:13:27,131 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:13:27,131 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:13:27,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:13:27,132 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:13:27,132 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:13:27,132 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:13:27,132 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:13:27,133 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:13:27,134 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:13:27,134 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:13:27,135 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:13:27,135 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:13:27,135 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:13:27,135 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:13:27,137 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:13:27,137 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb6f11e-ecd2-47e3-8a51-b038012122e2/bin/uautomizer-WNIpwEf4Nt/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb6f11e-ecd2-47e3-8a51-b038012122e2/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29fd7ebbcc9514a740018fa1c2ef695c1d81ea72 [2021-10-13 00:13:27,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:13:27,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:13:27,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:13:27,411 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:13:27,412 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:13:27,413 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb6f11e-ecd2-47e3-8a51-b038012122e2/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec4_product44.cil.c [2021-10-13 00:13:27,499 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb6f11e-ecd2-47e3-8a51-b038012122e2/bin/uautomizer-WNIpwEf4Nt/data/f857163cf/e963a876cbd740e68fd701adc8c21008/FLAG6707c269c [2021-10-13 00:13:28,007 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:13:28,007 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb6f11e-ecd2-47e3-8a51-b038012122e2/sv-benchmarks/c/product-lines/minepump_spec4_product44.cil.c [2021-10-13 00:13:28,026 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb6f11e-ecd2-47e3-8a51-b038012122e2/bin/uautomizer-WNIpwEf4Nt/data/f857163cf/e963a876cbd740e68fd701adc8c21008/FLAG6707c269c [2021-10-13 00:13:28,336 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb6f11e-ecd2-47e3-8a51-b038012122e2/bin/uautomizer-WNIpwEf4Nt/data/f857163cf/e963a876cbd740e68fd701adc8c21008 [2021-10-13 00:13:28,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:13:28,341 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:13:28,344 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:13:28,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:13:28,348 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:13:28,349 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:13:28" (1/1) ... [2021-10-13 00:13:28,351 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bf66fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:28, skipping insertion in model container [2021-10-13 00:13:28,351 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:13:28" (1/1) ... [2021-10-13 00:13:28,359 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:13:28,419 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:13:28,742 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb6f11e-ecd2-47e3-8a51-b038012122e2/sv-benchmarks/c/product-lines/minepump_spec4_product44.cil.c[15482,15495] [2021-10-13 00:13:28,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:13:28,774 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:13:28,832 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb6f11e-ecd2-47e3-8a51-b038012122e2/sv-benchmarks/c/product-lines/minepump_spec4_product44.cil.c[15482,15495] [2021-10-13 00:13:28,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:13:28,860 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:13:28,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:28 WrapperNode [2021-10-13 00:13:28,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:13:28,862 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:13:28,862 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:13:28,862 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:13:28,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:28" (1/1) ... [2021-10-13 00:13:28,887 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:28" (1/1) ... [2021-10-13 00:13:28,935 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:13:28,936 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:13:28,936 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:13:28,936 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:13:28,954 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:28" (1/1) ... [2021-10-13 00:13:28,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:28" (1/1) ... [2021-10-13 00:13:28,964 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:28" (1/1) ... [2021-10-13 00:13:28,965 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:28" (1/1) ... [2021-10-13 00:13:28,980 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:28" (1/1) ... [2021-10-13 00:13:28,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:28" (1/1) ... [2021-10-13 00:13:29,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:28" (1/1) ... [2021-10-13 00:13:29,004 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:13:29,005 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:13:29,005 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:13:29,005 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:13:29,007 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:28" (1/1) ... [2021-10-13 00:13:29,017 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:13:29,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb6f11e-ecd2-47e3-8a51-b038012122e2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:13:29,049 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb6f11e-ecd2-47e3-8a51-b038012122e2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:13:29,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb6f11e-ecd2-47e3-8a51-b038012122e2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:13:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:13:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:13:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:13:29,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:13:29,961 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:13:29,969 INFO L299 CfgBuilder]: Removed 120 assume(true) statements. [2021-10-13 00:13:29,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:13:29 BoogieIcfgContainer [2021-10-13 00:13:29,971 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:13:29,973 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:13:29,974 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:13:29,977 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:13:29,979 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:13:29,979 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:13:28" (1/3) ... [2021-10-13 00:13:29,980 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@43544e6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:13:29, skipping insertion in model container [2021-10-13 00:13:29,980 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:13:29,981 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:13:28" (2/3) ... [2021-10-13 00:13:29,981 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@43544e6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:13:29, skipping insertion in model container [2021-10-13 00:13:29,981 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:13:29,981 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:13:29" (3/3) ... [2021-10-13 00:13:29,983 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product44.cil.c [2021-10-13 00:13:30,039 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:13:30,039 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:13:30,039 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:13:30,039 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:13:30,039 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:13:30,039 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:13:30,039 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:13:30,040 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:13:30,064 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 86 states, 85 states have (on average 1.5176470588235293) internal successors, (129), 85 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:30,088 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2021-10-13 00:13:30,088 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:13:30,088 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:13:30,094 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:13:30,094 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:13:30,094 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:13:30,095 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 86 states, 85 states have (on average 1.5176470588235293) internal successors, (129), 85 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:30,101 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2021-10-13 00:13:30,101 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:13:30,101 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:13:30,102 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:13:30,103 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:13:30,110 INFO L791 eck$LassoCheckResult]: Stem: 64#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 48#L-1true havoc main_#res;havoc main_#t~ret69, main_~retValue_acc~8, main_~tmp~8;havoc main_~retValue_acc~8;havoc main_~tmp~8; 11#L462true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 47#L470true main_#t~ret69 := valid_product_#res;main_~tmp~8 := main_#t~ret69;havoc main_#t~ret69; 9#L841true assume 0 != main_~tmp~8; 16#L818true havoc test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 79#L53-1true [2021-10-13 00:13:30,116 INFO L793 eck$LassoCheckResult]: Loop: 79#L53-1true assume !false; 62#L492true assume test_~splverifierCounter~0 < 4; 13#L493true test_~tmp~4 := test_#t~nondet45;havoc test_#t~nondet45; 60#L501true assume !(0 != test_~tmp~4); 34#L501-1true test_~tmp___0~1 := test_#t~nondet46;havoc test_#t~nondet46; 4#L511true assume !(0 != test_~tmp___0~1); 84#L511-1true test_~tmp___2~0 := test_#t~nondet47;havoc test_#t~nondet47; 26#L521true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 82#L529-1true assume !(0 != ~pumpRunning~0); 12#L564true assume !(0 != ~systemActive~0); 68#L571true havoc __utac_acc__Specification4_spec__1_#t~ret7, __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 78#L930true __utac_acc__Specification4_spec__1_#t~ret7 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret7;havoc __utac_acc__Specification4_spec__1_#t~ret7; 35#L53true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 79#L53-1true [2021-10-13 00:13:30,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:13:30,123 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-13 00:13:30,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:13:30,135 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566371036] [2021-10-13 00:13:30,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:13:30,137 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:13:30,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:13:30,445 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:13:30,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:13:30,630 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:13:30,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:13:30,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1671648180, now seen corresponding path program 1 times [2021-10-13 00:13:30,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:13:30,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021973954] [2021-10-13 00:13:30,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:13:30,635 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:13:30,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:13:30,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:13:30,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:13:30,699 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021973954] [2021-10-13 00:13:30,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021973954] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:13:30,700 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:13:30,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:13:30,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321437411] [2021-10-13 00:13:30,706 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:13:30,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:13:30,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:13:30,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:13:30,723 INFO L87 Difference]: Start difference. First operand has 86 states, 85 states have (on average 1.5176470588235293) internal successors, (129), 85 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:30,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:13:30,776 INFO L93 Difference]: Finished difference Result 166 states and 234 transitions. [2021-10-13 00:13:30,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:13:30,778 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 166 states and 234 transitions. [2021-10-13 00:13:30,786 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 106 [2021-10-13 00:13:30,793 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 166 states to 152 states and 219 transitions. [2021-10-13 00:13:30,794 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 152 [2021-10-13 00:13:30,796 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 152 [2021-10-13 00:13:30,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 152 states and 219 transitions. [2021-10-13 00:13:30,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:13:30,798 INFO L681 BuchiCegarLoop]: Abstraction has 152 states and 219 transitions. [2021-10-13 00:13:30,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states and 219 transitions. [2021-10-13 00:13:30,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 150. [2021-10-13 00:13:30,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 150 states have (on average 1.44) internal successors, (216), 149 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:30,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 216 transitions. [2021-10-13 00:13:30,836 INFO L704 BuchiCegarLoop]: Abstraction has 150 states and 216 transitions. [2021-10-13 00:13:30,836 INFO L587 BuchiCegarLoop]: Abstraction has 150 states and 216 transitions. [2021-10-13 00:13:30,836 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:13:30,836 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 150 states and 216 transitions. [2021-10-13 00:13:30,843 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 104 [2021-10-13 00:13:30,844 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:13:30,844 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:13:30,844 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:13:30,847 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:13:30,847 INFO L791 eck$LassoCheckResult]: Stem: 343#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 329#L-1 havoc main_#res;havoc main_#t~ret69, main_~retValue_acc~8, main_~tmp~8;havoc main_~retValue_acc~8;havoc main_~tmp~8; 274#L462 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 275#L470 main_#t~ret69 := valid_product_#res;main_~tmp~8 := main_#t~ret69;havoc main_#t~ret69; 271#L841 assume 0 != main_~tmp~8; 272#L818 havoc test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 281#L53-1 [2021-10-13 00:13:30,848 INFO L793 eck$LassoCheckResult]: Loop: 281#L53-1 assume !false; 339#L492 assume test_~splverifierCounter~0 < 4; 340#L493 test_~tmp~4 := test_#t~nondet45;havoc test_#t~nondet45; 389#L501 assume !(0 != test_~tmp~4); 384#L501-1 test_~tmp___0~1 := test_#t~nondet46;havoc test_#t~nondet46; 381#L511 assume !(0 != test_~tmp___0~1); 379#L511-1 test_~tmp___2~0 := test_#t~nondet47;havoc test_#t~nondet47; 298#L521 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 297#L529-1 assume !(0 != ~pumpRunning~0); 276#L564 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 277#L596 assume !(0 == ~pumpRunning~0); 320#L571 havoc __utac_acc__Specification4_spec__1_#t~ret7, __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 346#L930 __utac_acc__Specification4_spec__1_#t~ret7 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret7;havoc __utac_acc__Specification4_spec__1_#t~ret7; 358#L53 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 281#L53-1 [2021-10-13 00:13:30,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:13:30,848 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-13 00:13:30,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:13:30,849 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91057953] [2021-10-13 00:13:30,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:13:30,849 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:13:30,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:13:30,924 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:13:31,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:13:31,031 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:13:31,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:13:31,034 INFO L82 PathProgramCache]: Analyzing trace with hash -323255269, now seen corresponding path program 1 times [2021-10-13 00:13:31,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:13:31,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487317741] [2021-10-13 00:13:31,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:13:31,039 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:13:31,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:13:31,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:13:31,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:13:31,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487317741] [2021-10-13 00:13:31,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487317741] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:13:31,066 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:13:31,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:13:31,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304666628] [2021-10-13 00:13:31,066 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:13:31,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:13:31,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:13:31,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:13:31,070 INFO L87 Difference]: Start difference. First operand 150 states and 216 transitions. cyclomatic complexity: 69 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:31,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:13:31,186 INFO L93 Difference]: Finished difference Result 233 states and 322 transitions. [2021-10-13 00:13:31,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:13:31,187 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 233 states and 322 transitions. [2021-10-13 00:13:31,192 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 167 [2021-10-13 00:13:31,206 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 233 states to 233 states and 322 transitions. [2021-10-13 00:13:31,206 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 233 [2021-10-13 00:13:31,207 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 233 [2021-10-13 00:13:31,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 233 states and 322 transitions. [2021-10-13 00:13:31,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:13:31,209 INFO L681 BuchiCegarLoop]: Abstraction has 233 states and 322 transitions. [2021-10-13 00:13:31,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states and 322 transitions. [2021-10-13 00:13:31,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2021-10-13 00:13:31,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 233 states have (on average 1.3819742489270386) internal successors, (322), 232 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:31,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 322 transitions. [2021-10-13 00:13:31,231 INFO L704 BuchiCegarLoop]: Abstraction has 233 states and 322 transitions. [2021-10-13 00:13:31,231 INFO L587 BuchiCegarLoop]: Abstraction has 233 states and 322 transitions. [2021-10-13 00:13:31,231 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 00:13:31,232 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 233 states and 322 transitions. [2021-10-13 00:13:31,239 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 167 [2021-10-13 00:13:31,239 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:13:31,239 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:13:31,241 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:13:31,241 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:13:31,241 INFO L791 eck$LassoCheckResult]: Stem: 743#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 726#L-1 havoc main_#res;havoc main_#t~ret69, main_~retValue_acc~8, main_~tmp~8;havoc main_~retValue_acc~8;havoc main_~tmp~8; 663#L462 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 664#L470 main_#t~ret69 := valid_product_#res;main_~tmp~8 := main_#t~ret69;havoc main_#t~ret69; 659#L841 assume 0 != main_~tmp~8; 660#L818 havoc test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 672#L53-1 [2021-10-13 00:13:31,242 INFO L793 eck$LassoCheckResult]: Loop: 672#L53-1 assume !false; 739#L492 assume test_~splverifierCounter~0 < 4; 668#L493 test_~tmp~4 := test_#t~nondet45;havoc test_#t~nondet45; 669#L501 assume !(0 != test_~tmp~4); 705#L501-1 test_~tmp___0~1 := test_#t~nondet46;havoc test_#t~nondet46; 650#L511 assume !(0 != test_~tmp___0~1); 651#L511-1 test_~tmp___2~0 := test_#t~nondet47;havoc test_#t~nondet47; 805#L521 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 692#L529-1 assume !(0 != ~pumpRunning~0); 802#L564 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 803#L596 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret68, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 785#L938 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 801#L943 isHighWaterLevel_#t~ret68 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret68;havoc isHighWaterLevel_#t~ret68; 800#L716 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~2 := 0; 799#L716-2 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 798#L722 processEnvironment_#t~ret49 := isHighWaterLevel_#res;processEnvironment_~tmp~5 := processEnvironment_#t~ret49;havoc processEnvironment_#t~ret49; 797#L600 assume !(0 != processEnvironment_~tmp~5); 745#L571 havoc __utac_acc__Specification4_spec__1_#t~ret7, __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 746#L930 __utac_acc__Specification4_spec__1_#t~ret7 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret7;havoc __utac_acc__Specification4_spec__1_#t~ret7; 703#L53 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 672#L53-1 [2021-10-13 00:13:31,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:13:31,244 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-13 00:13:31,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:13:31,245 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290531644] [2021-10-13 00:13:31,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:13:31,245 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:13:31,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:13:31,313 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:13:31,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:13:31,380 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:13:31,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:13:31,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1551152025, now seen corresponding path program 1 times [2021-10-13 00:13:31,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:13:31,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377250821] [2021-10-13 00:13:31,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:13:31,382 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:13:31,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:13:31,387 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:13:31,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:13:31,395 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:13:31,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:13:31,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1536440051, now seen corresponding path program 1 times [2021-10-13 00:13:31,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:13:31,396 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816880823] [2021-10-13 00:13:31,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:13:31,396 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:13:31,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:13:31,444 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:13:31,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:13:31,499 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:22,395 WARN L207 SmtUtils]: Spent 50.62 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-13 00:15:16,676 WARN L207 SmtUtils]: Spent 26.59 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-13 00:15:16,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:15:16 BoogieIcfgContainer [2021-10-13 00:15:16,779 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:15:16,779 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:15:16,780 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:15:16,780 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:15:16,780 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:13:29" (3/4) ... [2021-10-13 00:15:16,783 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 00:15:16,832 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb6f11e-ecd2-47e3-8a51-b038012122e2/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:15:16,832 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:15:16,833 INFO L168 Benchmark]: Toolchain (without parser) took 108491.87 ms. Allocated memory was 113.2 MB in the beginning and 142.6 MB in the end (delta: 29.4 MB). Free memory was 77.7 MB in the beginning and 33.0 MB in the end (delta: 44.7 MB). Peak memory consumption was 75.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:15:16,834 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 79.7 MB. Free memory was 34.3 MB in the beginning and 34.2 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:15:16,834 INFO L168 Benchmark]: CACSL2BoogieTranslator took 516.80 ms. Allocated memory is still 113.2 MB. Free memory was 77.7 MB in the beginning and 79.4 MB in the end (delta: -1.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:15:16,835 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.45 ms. Allocated memory is still 113.2 MB. Free memory was 79.4 MB in the beginning and 76.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:15:16,835 INFO L168 Benchmark]: Boogie Preprocessor took 68.11 ms. Allocated memory is still 113.2 MB. Free memory was 76.7 MB in the beginning and 74.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:15:16,836 INFO L168 Benchmark]: RCFGBuilder took 966.72 ms. Allocated memory was 113.2 MB in the beginning and 142.6 MB in the end (delta: 29.4 MB). Free memory was 74.2 MB in the beginning and 116.8 MB in the end (delta: -42.7 MB). Peak memory consumption was 46.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:15:16,836 INFO L168 Benchmark]: BuchiAutomizer took 106806.45 ms. Allocated memory is still 142.6 MB. Free memory was 116.8 MB in the beginning and 35.0 MB in the end (delta: 81.9 MB). Peak memory consumption was 85.9 MB. Max. memory is 16.1 GB. [2021-10-13 00:15:16,837 INFO L168 Benchmark]: Witness Printer took 52.72 ms. Allocated memory is still 142.6 MB. Free memory was 35.0 MB in the beginning and 33.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:15:16,840 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 79.7 MB. Free memory was 34.3 MB in the beginning and 34.2 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 516.80 ms. Allocated memory is still 113.2 MB. Free memory was 77.7 MB in the beginning and 79.4 MB in the end (delta: -1.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.45 ms. Allocated memory is still 113.2 MB. Free memory was 79.4 MB in the beginning and 76.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 68.11 ms. Allocated memory is still 113.2 MB. Free memory was 76.7 MB in the beginning and 74.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 966.72 ms. Allocated memory was 113.2 MB in the beginning and 142.6 MB in the end (delta: 29.4 MB). Free memory was 74.2 MB in the beginning and 116.8 MB in the end (delta: -42.7 MB). Peak memory consumption was 46.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 106806.45 ms. Allocated memory is still 142.6 MB. Free memory was 116.8 MB in the beginning and 35.0 MB in the end (delta: 81.9 MB). Peak memory consumption was 85.9 MB. Max. memory is 16.1 GB. * Witness Printer took 52.72 ms. Allocated memory is still 142.6 MB. Free memory was 35.0 MB in the beginning and 33.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 233 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 106.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 106.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 46.3ms AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 233 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 230 SDtfs, 210 SDslu, 158 SDs, 0 SdLazy, 32 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 87.1ms Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 491]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=22274} State at position 1 is {NULL=0, NULL=22300, NULL=0, retValue_acc=1, NULL=22274, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6298400=0, NULL=22284, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7cdba84c=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ab77d7a=66, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a7c558d=0, NULL=0, NULL=22288, NULL=22285, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@262ff57d=0, NULL=22296, methaneLevelCritical=0, NULL=22293, tmp___0=0, NULL=0, tmp=0, NULL=22298, NULL=0, retValue_acc=0, tmp___1=0, NULL=22278, NULL=0, NULL=0, tmp___0=0, NULL=22277, NULL=22292, NULL=22302, cleanupTimeShifts=4, NULL=22279, NULL=22301, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@521a86a6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30e2bcd5=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b7f9684=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f5a93dc=0, NULL=0, NULL=0, NULL=22299, \result=1, head=0, pumpRunning=0, NULL=22297, \result=0, NULL=0, tmp=1, \result=1, retValue_acc=1, NULL=22283, NULL=22295, tmp=1, NULL=0, NULL=0, NULL=0, NULL=22287, NULL=22289, NULL=0, NULL=22275, tmp=1, tmp___2=66, NULL=0, retValue_acc=1, NULL=22281, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=22286, NULL=22276, NULL=22290, head=0, NULL=0, tmp=0, NULL=22280, NULL=22282, NULL=0, NULL=0, NULL=0, NULL=22294, NULL=22291} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L240] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L557] int pumpRunning = 0; [L558] int systemActive = 1; [L759] int cleanupTimeShifts = 4; [L855] int waterLevel = 1; [L856] int methaneLevelCritical = 0; [L832] int retValue_acc ; [L833] int tmp ; [L466] int retValue_acc ; [L469] retValue_acc = 1 [L470] return (retValue_acc); [L839] tmp = valid_product() [L841] COND TRUE \read(tmp) [L482] int splverifierCounter ; [L483] int tmp ; [L484] int tmp___0 ; [L485] int tmp___1 ; [L486] int tmp___2 ; [L489] splverifierCounter = 0 Loop: [L491] COND TRUE 1 [L493] COND TRUE splverifierCounter < 4 [L499] tmp = __VERIFIER_nondet_int() [L501] COND FALSE !(\read(tmp)) [L509] tmp___0 = __VERIFIER_nondet_int() [L511] COND FALSE !(\read(tmp___0)) [L519] tmp___2 = __VERIFIER_nondet_int() [L521] COND TRUE \read(tmp___2) [L745] systemActive = 1 [L564] COND FALSE !(\read(pumpRunning)) [L571] COND TRUE \read(systemActive) [L593] int tmp ; [L596] COND TRUE ! pumpRunning [L708] int retValue_acc ; [L709] int tmp ; [L710] int tmp___0 ; [L935] int retValue_acc ; [L938] COND TRUE waterLevel < 2 [L939] retValue_acc = 1 [L940] return (retValue_acc); [L714] tmp = isHighWaterSensorDry() [L716] COND TRUE \read(tmp) [L717] tmp___0 = 0 [L721] retValue_acc = tmp___0 [L722] return (retValue_acc); [L598] tmp = isHighWaterLevel() [L600] COND FALSE !(\read(tmp)) [L46] int tmp ; [L47] int tmp___0 ; [L926] int retValue_acc ; [L929] retValue_acc = waterLevel [L930] return (retValue_acc); [L51] tmp = getWaterLevel() [L53] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 00:15:16,908 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb6f11e-ecd2-47e3-8a51-b038012122e2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...